Library not loaded error with PySide on OSX

Question

I moved a downloaded copy of PySide out of its original install location (/Library/PySide/2.7/site-packages/PySide) to a location on the network, so a script can access it. However, I started to get a "Library not loaded" error. I made a copy on my desktop for testing:

Traceback (most recent call last):
  File "test_pyside_imports.py", line 2, in <module>
    import PySide.QtCore
ImportError: dlopen(/Users/user/Desktop/PySide_OSX/PySide/QtCore.so, 2): Library not loaded: /Library/Python/2.7/site-packages/PySide/libpyside-python2.7.1.2.dylib
  Referenced from: /Users/user/Desktop/PySide_OSX/PySide/QtCore.so
  Reason: image not found

I have run across this issue before, and I am sure that I fixed it with a bash script that just ran install_name_tool a lot:

#! /usr/bin/env bash
install_name_tool -change @rpath/libpyside-python2.7.1.2.dylib ./PySide/libpyside-python2.7.1.2.dylib ./PySide/QtCore.so
install_name_tool -change @rpath/libshiboken-python2.7.1.2.dylib ./PySide/libshiboken-python2.7.1.2.dylib ./PySide/QtCore.so

However, for some reason the script does not seem to resolve the issue, and QtCore.so is still looking for the library in the original location. I checked the permissions on the files and double checked the paths in the script. Any idea on what I am missing?

Thanks.

EDIT

Getting closer.

#! /usr/bin/env bash
install_name_tool -change /Library/Python/2.7/site-packages/PySide/libpyside-python2.7.1.2.dylib ./PySide/libpyside-python2.7.1.2.dylib ./PySide/QtCore.so
install_name_tool -change /Library/Python/2.7/site-packages/PySide/libshiboken-python2.7.1.2.dylib ./PySide/libshiboken-python2.7.1.2.dylib ./PySide/QtCore.so

When I run the above as a bash script and then try to do an import, I get a new error:

D25MG1AZF8J8:PySide_OSX spearsc$ python test_pyside_imports.py 
Traceback (most recent call last):
  File "test_pyside_imports.py", line 2, in <module>
    import PySide.QtCore
ImportError: dlopen(/Users/spearsc/Desktop/PySide_OSX/PySide/QtCore.so, 2): Library not loaded: ./PySide/libpyside-python2.7.1.2.dylib
  Referenced from: /Users/spearsc/Desktop/PySide_OSX/PySide/QtCore.so
  Reason: unsafe use of relative rpath ./PySide/libpyside-python2.7.1.2.dylib in /Users/spearsc/Desktop/PySide_OSX/PySide/QtCore.so with restricted binary

I think the issue with my first bash script is that the old path did not exist and was ignored. Now, I need to try again but use an absolute path.

Answer 1

That was the trick. I had to use absolute paths in my bash script. All the bash script did was run 'install_name_tool' to change the old paths to the new ones.

#! /usr/bin/env bash
install_name_tool -change /Library/Python/2.7/site-packages/PySide/libpyside-python2.7.1.2.dylib /Users/spearsc/Desktop/PySide_OSX/PySide/libpyside-python2.7.1.2.dylib /Users/spearsc/Desktop/PySide_OSX/PySide/QtCore.so
install_name_tool -change /Library/Python/2.7/site-packages/PySide/libshiboken-python2.7.1.2.dylib /Users/spearsc/Desktop/PySide_OSX/PySide/libshiboken-python2.7.1.2.dylib /Users/spearsc/Desktop/PySide_OSX/PySide/QtCore.so
install_name_tool -change /Library/Python/2.7/site-packages/PySide/libpyside-python2.7.1.2.dylib /Users/spearsc/Desktop/PySide_OSX/PySide/libpyside-python2.7.1.2.dylib /Users/spearsc/Desktop/PySide_OSX/PySide/libshiboken-python2.7.1.2.dylib
install_name_tool -change /Library/Python/2.7/site-packages/PySide/libshiboken-python2.7.1.2.dylib /Users/spearsc/Desktop/PySide_OSX/PySide/libshiboken-python2.7.1.2.dylib /Users/spearsc/Desktop/PySide_OSX/PySide/libshiboken-python2.7.1.2.dylib
install_name_tool -change /Library/Python/2.7/site-packages/PySide/libpyside-python2.7.1.2.dylib /Users/spearsc/Desktop/PySide_OSX/PySide/libpyside-python2.7.1.2.dylib /Users/spearsc/Desktop/PySide_OSX/PySide/libpyside-python2.7.1.2.dylib
install_name_tool -change /Library/Python/2.7/site-packages/PySide/libshiboken-python2.7.1.2.dylib /Users/spearsc/Desktop/PySide_OSX/PySide/libshiboken-python2.7.1.2.dylib /Users/spearsc/Desktop/PySide_OSX/PySide/libpyside-python2.7.1.2.dylib

Just remember that the code snippet will just changes the paths for QtCore.so, libshiboken-python2.7.1.2.dylib, and libpyside-python2.7.1.2.dylib. You need to run 'install_name_tool' for all of the .so files in the PySide folder as well. In the end, my bash script was about 37-38 lines long.